AMERICAN EXPERIENCE | The Forgotten Plague (Preview) | PBS

Watch the full-length episode at http://video.pbs.org/video/2365422268/?Utm_source=youtube&utm_medium=pbsofficial&utm_campaign=amms_covefullprogram (US Only) Premieres February 10 on PBS American Experience. By the dawn of the 19th century tuberculosis had killed one in seven of all the people who had ever lived. The battle against the deadly bacteria had a profound and lasting impact on the US, shaping medical and scientific pursuits, social habits, economic development, western expansion, and government policy.